Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 2551 (1982, Reaffirmed 2010): Danger Notice Plates(First Revision). UDC 621.3-783.2 : 614.8.013 : 003.62

Gr

(Reaffirmed 2010) IS : 25&1 - 1982

T d· Sf ,I d (Reaffirmed 2005 ) In Ian anuar DA.NGER NOTICE PLATES

( First Revision )

First Reprint NOVEMBER 1992

UDC 621-3-783-2; 614-8-013 : 003-62

to Copyright 1983

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

}Jay 1983

Indian Standard DANGER N'OTICE PLATES

( First Revision )

IS , 2551 - 1982

Code of Practice for Power Installation and Maintenance Sectional Committee, ETDC 20

Chairman SERI P. C. MANKODI*

Members

Represent in, Gujarat Electricity Board, Vadodara

SHRI B. C. ALVA Karnataka Electricity Board, Bangalore SHRI T. N. R. RA.O (Alternate)

SHRI M. J. ANANDAMURTBY Chief Electrical Inspector to the Government of

ELECTRIOAL INs P E 0 T 0 B (T E C H N lOA L) TO THE

GOVERNMENT OJ' T AMI.L NADU (Alternal,)

SHIH P. D. BAGADE Smu R. C. BAJPAI (Alternate)

SHRI V. S. BHATIA SJlRI K. K. PANT (Alternate)

SHRI K. V. CHAUBAL

SBRI K. S. JOSHI ( Alternate)

Tamil Nadu, Madras

Tata Consulting Engineers, Bombay

Siemens India Ltd, Bombay

The Federation of Electricity Undertakings of India, Bombay

CHIEF ELECTHIC.AL ENGINEER Railway Board ( Ministry of Railways) DEPUTY DIRECTOR STANDARDS

(ELEc)-IV, RDSa (Alternate) CHIEF ENGINEER (ELEc) ... I Central Public Works Department, New Delhi

SURVEYOR OF WORKS (ELEo)-I ( Alternate)

SHRIB.L.DESRPANDB Electrical Engineer to the Maharashtra, Bombay

SHRI DEVENDER NATH Larsen & Toubro Ltd, Bombay SHRl T. P. R. SARMA (Alternate)

C"y-ernment of

( Continued on /Jag' 2 )

·Shri P. C. Mankodi was the Chairman for tbe meeting in whkh this standard was finalized.

<0 Copyright 1983 BUREAU OF INDIAN STANDARDS

This pUblication is protected under the Indian Copyright Ad (XIV of 1957) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act.

IS : 2551 • 1982

( Omtinued fram pa,. i )

Members

SHRI K. W. DRARMADHIKARI SHBI G .. L. DUA

Representing J yoti Ltd, Vadodara Rural Electrification Corporation Ltd, New Delhi

SIlRI S. K. SETHI ( Alternate) SlIRI D. J. HASTAK

~1EMBER ( HYDItO-EI.ECTRIC)

DIRECTOR (HED)-I ( Alternate)

Maharashtra State Electricity Board, Bombay Central Electricity Authority, New Delhi

SHRl D. R. NEELAPPA REDDY NGEF Ltd, Bangalore SHRI G. S. N. MURTHY (Alllrnate)

SaRI K. P. R. PILLAI Fact Engineering Udyogamandal

& Design Organization,

SRRt C. R. R. MENON (Alternate) LT"COL B. B. RAJPAL Engineer .. in-Chief's Branch, Army Headquarten

( Ministry of Defence) SnRI S. K. SHANGABI ( Alternate)

SnRI RANES RAY CnouDHURI Engineering Construction Corporation Limited, Bombay

SHEI L. E. D. CRUZ ( Alternate) REPRESENT ATIV:E Bharat Heavy Electrical! Ltd, Secunderabad

SHRI R. CHAKR.l VARTY ( Alternate I ) SunI G. L. PAHWA ( Alternate II )

SHIn B. M. SAMANT The Bombay Electric Supply & Transport Undertaking, Bombay

SHRI V. T. WARANG ( Alternate) SHRI I. C. SANGER Delhi Electric Supply Undertaking, New Delhi

SURI P. S. SA WHNKY ( AIr ernatl ) Smu SARDUL SINGH Chief Electrical Inspector, Government of Punjab,

Chandigarh SHRI D. S. UPPAL ( AltlTnale)

SnRI V. SATHYANATHAN Tamil Nadu Electricity Board, Madras SlIRI S. KIUSRN AnAl ( Alternate)

SUR! R. SATYABAL Tariff Advisory Committee, General Insurance , Association of India, Bombay

SnRI K. K. MANDAL ( Alternate) DR T. C. SIDRAN Chief Electrical Inspector, Government of. Kerala,

Trivandrum Snnt H. K. SITARAM The Calcutta Electric Supply Corporation Ltd,

Calcutta SERI S. K. P ALIT ( Alternate)

SHlH G. N. TItADANI Engineers India Ltd, New Delhi SnRI S. G. GOKHALE (Alternate)

SHRI S. V AIDY A:N A'rHAN Kerala State Electricity Board, Trivandrum SHRI R. V ARADARAJ AN ( Alternate)

SBRI S. P. SACHDEV, Director General, lSI (E~-offid(J Membu) Director ( Elec tech)

Secretary SaRI K. GANESB

Assistant Director (Elec tech), lSI

2

( Conlinuld on pal' 10 )

IS I 2551 • 1982

Indian Standard DANGER NOTICE PLATES

( First Revision)

o. FOR E W 0 R D

0.1 This Indian Standard (First Revision) was adopted by the Indian Standards Institution on 7 October 1982, after the draft finalized by the Code of Practice for Power Installation and Maintenance Sectional Committee had been approved by the Electrotechnical Division Council.

0.2 Under Rule No. 35 of the Indian Electricity Rules, 1956, the owner of every medium, high and extra high voltage installation is required to affix permanently in a conspicuous position a danger notice in Hindi or English and the loeallanguage of the district) with the sign of skull and bones and of a type approved by the Electrical Inspector. The· rule is reproduc;!d in Appendix A.

O.l It has been however observed that in different places, different sizes and designs of such notice plates have been in use and the need for standardizing the important features of such danger notice plates has been long since felt. This standard was therefore originally prepared in 1963, to cover Hindi version of the notice plates in consonance with the then existing rules.

0.4 This revision is being brought out to cover standardized features of notice plates in line with IE Rule 35 as amended as well as to lay down essential requirements and tests to ensure satisfactory functioning of danger notice plates in use. This revision also includes recommended equivalent to the word 'danger' in some of the regional languages for use in the respective states. Equivalents in other languages are under consideration.

0.5 This standard for the time being includes the requirelnents of danger notice in the form of plates only.. It is, however, recognized that the use of danger notices in the form of stickers are also in vogue in the country in some States. The requirements of such danger notices in a form other .than plates are under consideration for standardization.

0.6 In the interest of universal acceptance of the message of cautkJn in the danger notice irrespective of language consideration, it is proposed to

3

1& : 2551 .. 1982

evolveJ a standard symbol for danger which would, it is hoped in due course replace the present contents of danger notice.

0.7 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS: 2-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

,." : ~

1. SCOPE ~ ,

1.1 This standard covers danger notice plates to be displayed in accordance with Rule No. 35 of the Indian Electricity Rules, 1956.

2. DANGER NOTICE PLATES

2.1 Dimensions

2.1.1 For the purposes of this standard, two sizes of danger notice plates are recommended as below:

a) For display at medium voltage installations

b) For high and extra high voltage installations

200 X 150 mm ( see Fig. 1 )

250 X 200 mm ( see Fig. 2 )

2.1.2 All letterings shall be centrally spaced. The dimensions of the letters, figures and their respective positions shall be as given in Fig. I and Fig. 2 for medium voltage and high and extra high voltage installa­tions respectively. The size of each letter in the word in each language, and the spacing between them for the purposes of scribing shall be so chosen that they are uniformly written in the space earmarked for them.

2.1.3 The corners of the plate shall be rounded off's

2.1.4 The location of the fixing holes shall be left to the choice of the user.

3. MA~ERIAL AND FINISH

3.1 The plate shall be made from lnild steel, at least 1'6 mm thick and vitreous enamelled white, with letters, figures and the conventional skull and cross-bones in signal red colour [see IS : S .. 1978t] on the front side. The rear side of the plate shall also be enamelled.

·Rules for rounding off numerical values ( "vistd ). tColours for ready mixed paints and enamels ( third revisiDn ).

4

IS : 2551 - 1982

r-..... -------2oo~--t---~ .. f

-i--+"'~ - ......-r-~-_--70.;_.;;;;;J_l -<;) , 2~

J Til ~i S ~'S ____ !l0 ------..t ti~g 1~

() 4~ 20 ~

r ~15·IN OfST LANGUAGE L t-.....-E-Q-U-I~-~l-e:-N-T-f1F--lCl ( .... NOI NUWERAlS 15 ·VOt,.TS· ..L. WHEREVER APPL~CABlEJ L IN DIS' LANGUAGE

1S L. 45 .. 1 I... 4$ ... I.s.

ISC

t NOT LESS THAN 6 mm EQUtV .... INY OF'DANOI" 25

\' OIA GI BOLT TO 8E USED .N D'S1 tANOUAOI

~, ..... ~ ... ::::::.-7-0 :::::: .... :1 ~ NOTE 1- A1l1etterings should be centrally spa~d. NOTlr: 2 - The dimension~ for the words in district language are mainly for

guidance, however, care should be taken to space them .:entrally between the edges and the area of the skull and bones.

NOTE 3 - The location of the fixing holes shall be left to the choice of the user. NOTE 4 - The 'corners of the plates should be rounded off.

All dimensions in millimetre •.

FIG. 1 DANGER NOTICE PLATE FOR MEDIUM VOLTAGE INSTALLATION

4. LANGUAGES

4.1 Hindi - The word recornmended to denote danger in Hindi and the type of lettering are indicated in the specimen danger notice plates shown in Fig. I and 2.

4.2 English - For denoting in English, the type of lettering recommended is shown in Fig. 3.

4.3 Other District Languages - The recommended equivalents to danger in lome regional languages are given in Appendix B.

5

c·

200

11-oot-... ------. - 250

~ 1~~~I~fj <>-

[licioa ffio ~ 65---W 15

-$- 50· A • .MIC/~"- 20 + EQUIVALENT OF r 11 000 IN 015T LANOU-20 AGE (HINOI NUMERALS L WHEREVER APPLICABLE

20 'VOLTS' IN 015T .L LANGUAGE

15 t---65 .. I '---65---...... j 15

EQUIVALENT OF 'OANGER f ~T LESS THAN 6mm IN Olsr LANGUAGE 3( OIA GI BOlT TO BE

USEO

~ 100 .- ,t ¢

NOTE 1- All letterings should be centrally gpac~d. NOTE 2 - The dimensioIll for the words in district Janguage

are mainly for guidance, however, care should be taken to space them centrally between the edges and the area of the skull and bones.

NocrE 3 - The location of the fixing. holes shall be' left to the choice of the user.

NOTE 4 - t 1 000 volts is just specimen, actual voltage is to be inserted fot different system voltagelS.

NOTE 5 - The comers of the plate. should be rounded off.

All dimensions in millimetre!.

...c r..n

.t-.j Yl 1.11 ..... .-1.0 eo N

150

IS I 2551 • 1982

~-------------------------200--------------~------~~

1 _!S '15 IN D!ST LANGUAGE

(HINDI NUMERALS t WHEREVER APPlICA8LE)

15 ....... ~-l. 5 ----...,.-1Il004

N

EQUlVALENT OF "DANGER'"

20

.---.-----~ l' EQUIVALENT OF 15 'VOLTS' t IN OI$T L ANGVAGE

t-oI-..... - 4 5 ~ ........ ~l 15

f 25

iN DIS T LANGUAGE f

t-----...........-..-1ooaiI .... 1t----70 -----II .. ...;, 10

;b)

All dimensions in roillimetres.

FIG. 3 DANGER NOTICE PLATE FOR MEDIUM VOLTAGB INSTALLATION

5. MARKING.

5.1 The essential information that would be necessary to identify the manufacturer of the danger notice plates shall be marked, in such a manner and position on the plates that it does not interfere with the other information.

5.2 The danger notice plates may also be marked with the lSI Certifica­tion Mark.

NOTE - The use of the lSI Certification Mark i5 governed by the provisions of the Indian Standards Institution (Certification Marks) Act and the Rules and Regulations made thereunder. The lSI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by lSI and operated by the producer. lSI marked products are also continuously checked by lSI for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the lSI Certification Mark may be granted to manufacturen or processorJ, may be obtained from the Indian Standards Institution.

7

IS : 2551 - 1982

6. TESTS

6.0 General

6.0.1 In order to ensure that the notice plates conform to this specifica­tion, the following essential tests are specified. The number of samples to be tested shall be as agreed to between the supplier and the user.

6.0.2 The following shall constitute the tests:

a) Visual examination,

b) Dimensional check, and

c) Test for wheather-proofness.

6.1 Visual Examination - The samples of notice plates shall be examined visually for conformity to the various requirements of this standard in respect of the works and letters used, their relative position and size. The colour of the paint used shall be visually compared with the signal red colour specified in IS : 5 ... 1978*.

6.2 Di:mensional Check - The dimensions of the plate, its thickness and the size of lettering, figures, etc, shall be checked for conformity to Fig. 1 or Fig. 2 as applicable. Allietterings shall be centrally spaced and shall conform generally to the stipulations in 2.1.2 to 2.1.4.

6.3 Test for Weather-ProoCness - For the purpose of verifying colou~ retention of the vitreous enamel coatings, the method of test specified in IS: 8709-1977t shall applY.

APPENDIX A ( Clause 0.2 )

EXTRACT FROM INDIAN ELECTRICITY RULES, 1956

Rules 35 Danger Notices - The owner of every medium, high and extra high voltage installation shall affix permanently in a conspicuous position a danger notice in Hindi or English and the local languages of the district, with a sign of skull and bones and of a type approved by the Inspector on:

a) every motor, generator, transformer and other elecrical plant and equipment together with apparatus used for conttQHing or regulating the same.

• Colours for ready mixed paints and enamels ( third r8Dision ). tMethod of tests for colour retention of vitreous enamel coatings.

8

IS : 2551 - 1982

b) all SJlpports of high and extra high voltage overhead lines which can be easily climbed upon without the aid of ladder or special appliances.

Explanation - rails, tubular poles, wooden supports, reinforced cement concrete poles without steps. I '"sections and channels, shall be deemed as supports which cannot be easily climbed upon for the purposes of this clause.

c) Luminous tube sign requiring high voltage supply, X-ray and similar high-frequency installations.

Provided that where it is not possible to affix notices on any generator, motor, transformer or other apparatus, they shall be affixed as near as possible thereto; or the word danger and the voltage of the apparatus concerned shall be permanently painted on it.

Provided further that where the generator, motor, transformer or other apparatus is within an enclosure, one notice affixed to the said enclosure shall be 5ufficip.nt for the purpose of this rule ..

APPENDIX B

( Clause 4.3 )

RECOMMENDED EQ.UIV ALENTS TO 'DANGER' IN SOME REGIONAL LANGUAGES

'Language

Punjabi

Urdu

Marathi

Tamil

Malayalam

Bengali

Oriya

9

Equivalent to the word ( Danger'

dt lJrTUJW

ffid~JOUO

N'iiWz ~CU£1

IS : 2551 • 1982

( Continued from pag~ 2 )

Panel for Safety Procedures, ETDC 20/P35

Representing Convener

SHBI P. C. MANKODI Gujarat Electricity Board, Vadodara

Members SHRIJ. H. PATEL (Alternate to

Shri P. C. Mankodi) CHIEF ENGINEER (ELEC ) .. 1 Central Public Works Department, New Delhi

SHRI B. GUPTA SHARMA ( Alternat,) DIRECTOR ( COMMERCIAL) Central Electricity Authority, New Delhi

DEPUTY DIRECTOR (L & L) (Alttrn4te) SHIn H. N. GUPTA Directorate General of Factory, Bombay.

SHR! G. V AIDYANATIIAN ( Alternate) Smu D.J. HASTAK Maharashtra State Electricity Board, Bombay SlIB! D. NARAYAN A RAO Karnataka Electricity Board, Bangalore DB T. C. SXDHAN Chief Electrical Inspector, Government of Kerala,

Trivandrum

10

BUREAU OF INDIAN STANDARDS

H8IJdquarters " Manak Bhavan. 9 Bahadur Shah Zafar Marg. NEW DELHI 110002 Telephones: 331 01 31

331 1375 Regional Offices:

Telegrams : M"anaksanstha

(Common to all Offices) TelephonfJ

Central

.. Eastern

Northern Southern

t Western

: Manak Bhavan, 9, Bahadur Shah Zatar Marg. NEW DELHI 110002

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BHOPAL 462003

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Inspection Offices (With Sale Point) :

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Institution of Engineers (India) Building, 1332 Shivaji Nagar. PUNE 411005

·Sales Office Calcutta is at 5 Chowringhee Approach. P. O. Princep Street, CALCUTTA

t Sales Office is at Novelty Chambers, Grant Road, BOMBAY

: Sates Office is at Unity Building, Narasimharaja Square, BANGALORE

S 331 01 31 l3311315

378662

21843 41 29 16

6329295

26348 394955

554021

53627 26705

8-71 19 96 331 77

2310 83

63471 21 6876 55501

62305

621 04

52 61 71

52435

27 6800

8965 28 2239 71

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